| 摘要 |
PURPOSE:To early detect a data error by providing the check data in a prescribed area, setting previously the data setting value to the check data, and taking out the check data to decide the occurrence of an error when the check data is not coincident with the data setting value. CONSTITUTION:The check data is provided between the executing data on programs and a check data setting part 2 sets previously the data setting value to the check data. When debugging a program, etc., a check data checking part 3 takes out the check data and decides where the check data is coincident with the data setting value or not. If not, the abnormality of a program is decided and the error is detected. Thus the occurrence of an error can be detected as early as possible. |
